Home
About Us
Product
- Hydraulic dynamometer
- Eddy current dynamometer
- AC dynamometer
- Engine cooling water column
- Control and data acquisition system
- Engine trolley
- Recycling Water System
News
Contact Us

Inquiry

Form loading...

Engine trolley

Available in three types: light, medium, and heavy, with load capacities of 1 ton, 4 tons, and 8 tons respectively.

Engine Test Support Equipment

Engine Test Trolley

A movable engine mounting platform that holds the engine at the correct centerline height for dynamometer testing. Three load classes cover 1, 4 and 8 ton engines, and the front end connects directly to standard SAE flywheel housings.

1 / 4 / 8 tLight, medium, heavy

750–900 mmCenter height

SAE 0#–6#Flywheel housing fit

Three load classes

A trolley size for every engine family

The range is divided into light, medium and heavy types. Each type pairs a rated load capacity with its own center height, so the engine crankshaft axis can be aligned with the dynamometer before the test cell is closed up.

Engine trolley capacity and center height Data as supplied by Hance Dyno

Type	Load capacity	Center height	Typical engine class
Light duty	1 ton	750 mm	Compact and light automotive or industrial engines
Medium duty	4 tons	870 mm	Mid-size diesel engines for vehicle and industrial use
Heavy duty	8 tons	900 mm	Large heavy-duty and high-displacement diesel engines

Load capacity refers to the engine mass the trolley is designed to carry. Confirm the actual engine mass, center of gravity and accessory load when selecting the trolley type.

Engine interface

Front mounting through the flywheel housing

Instead of clamping the engine by its sump or block sides, the trolley bolts to the engine flywheel housing. This is the same interface the dynamometer uses, so the engine keeps the alignment it will have during the test.

Engine trolley front plate bolted to a diesel engine flywheel housing

Front support features

Bolts directly to the engine flywheel housing
Compatible with all standard flywheel housings from SAE 0# to SAE 6#
Maintains the engine centerline height relative to the dynamometer
Allows the engine to be prepared and aligned away from the test bed

Adjustment and mobility

Three-dimensional rear adjustment for different engine sizes

The rear end of the trolley can be adjusted in three dimensions according to the engine size. That is what allows one trolley to accept different engine lengths, block profiles and mounting foot positions without a dedicated fixture for every model.

What the adjustment covers

Longitudinal position to suit different engine lengths
Lateral position to suit different mounting foot spacing
Vertical height to suit different block and sump profiles
Rear support points that stabilize the engine during run-in
Rapid installation and positioning of imported and domestic engines

Adjustable rear supports and casters on an engine test trolley

Working principle

From bare engine to a coupled test

The trolley is a preparation and transport platform as much as a test fixture. Mounting the engine on it before the test cell is occupied keeps the dynamometer free for the next job.

01Mount the engine

The flywheel housing is bolted to the trolley front support using the matching housing interface.

02Set the center height

The light, medium or heavy trolley places the engine at its designed centerline height of 750, 870 or 900 mm.

03Adjust the rear supports

The rear end is set in three dimensions so the engine sits level and stable on its own mounting points.

04Move in and couple

The trolley is wheeled into the test cell and the engine is coupled to the dynamometer for the test run.

Selection inputs

Information needed to specify a trolley

Trolley selection is driven by the engine itself and by the test cell layout. Both sets of inputs should be confirmed before the order is placed.

Engine mass and distributionTotal engine mass including accessories, plus the approximate center of gravity position.

Flywheel housing standardThe SAE housing size used by the engine, so the correct front interface is supplied.

Engine dimensionsOverall length, block and sump profile, and mounting foot spacing for the rear supports.

Dynamometer centerlineThe center height of the dynamometer the engine will be coupled to.

Test cell handlingHow the trolley is moved and positioned, and whether floor rails, level pads or lifting points are used.

Services routingSpace needed for fuel, coolant, oil, exhaust and instrumentation connections around the engine.

Buyer questions

Engine trolley FAQ

Answers to the questions engineers ask most often when planning engine mounting for a dynamometer test cell.

What is an engine trolley used for?

It carries and supports an engine at the correct centerline height so the engine can be prepared, moved into the test cell and coupled to a dynamometer for testing.

How do I choose between the 1, 4 and 8 ton trolleys?

Start with the engine mass including accessories. The light-duty trolley is rated at 1 ton with a 750 mm center height, the medium-duty at 4 tons with 870 mm, and the heavy-duty at 8 tons with 900 mm. The dynamometer centerline and engine dimensions should also be checked.

Which engines fit the front mounting?

The front end connects to the engine flywheel housing and is compatible with all standard flywheel housings from SAE 0# to SAE 6#.

How does the trolley handle different engine sizes?

The rear end of the trolley can be adjusted in three dimensions according to the engine size, which accommodates the rapid installation and positioning of imported and domestic engines.

Can the engine be prepared away from the test bed?

Yes. Mounting on a movable trolley allows the engine and its connections to be assembled outside the test cell and then rolled in for coupling, which keeps the dynamometer available for other work.

What should be confirmed before ordering?

Engine mass and center of gravity, flywheel housing standard, overall engine and mounting dimensions, the dynamometer centerline height, and how the trolley will be moved and secured in the cell.

Complete the test cell

Related Hance systems

The trolley is normally specified together with the dynamometer, the control system and the engine support equipment around it.

Specify the right engine trolley for your test cell

Share the engine mass, flywheel housing standard, engine dimensions and dynamometer centerline height with Hance, and we will confirm the trolley type and mounting arrangement.

Request Engine Trolley Selection

Categories